Collapsed-carton-feeding device for carton-filling machines



Nov. 3, 1925. 1,559,707

R. A. JONES COLLAPSED CARTON FEEDING DEVICE FOR CARTON FILLING MACHINES Filed Dec. 17, 1921 Patented Nov. 3,

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GOLLAPSED-CABTON-I'EEDDIG DEVICE FOR CARTON-FILLING MACHINES.

' Application filed December 17, 1921. Serial li 'o. 528,237.

To all wlwm it may concern:

Be it known that I, Rm A. Jomns, a citizen ofthe United States, and residing at Oovington, in the county of Kenton and State of Kentucky, have invented a new and useful Improvement in Collapsed-Carton-Feeding Devices for Carton-Filling Machines, of which the following specification is a full disclosure. I v

My invention relates to improvements in carton filling machines, and one of the objects of the invention is to provide a machine of this character, which will operate upon a commercial foldable carton marketed in. a collapsed or knock-down state,

for ejecting the cartons successively one by one from a stack or pile loaded within the magazine of the machine.

Other objects of the invention may be directed to the various features of advantage and detail of construction of improved mechanism for expelling and delivering the cartons from a stack orpile within a magazine or holder, all of which will be more fully set forth in the description of the accompanying drawings, forming apart of this specification, and in the drawings like characters of reference denote corresponding parts throughout the several views, of which: 7 i

Figure 1 is an end elevation of the machine viewed from the head or receiving end thereof.

Figure 2 is asectional view taken on line 22 of Figure 1.

are appropriately disposed for successively ejecting the lowermost carton of the stack.

The mechanism is arranged preferably to operate upon a particular kind of cardboard carton presented to the machine in a knockdown or fiat form as received from the carton manufacturer and provides a rectangular box with opposite end closure flaps.

While this description will be confined to I the particular style of carton shown, the

- mechanism of the machine is susceptible to ope'rate'..upon other styles of cartons, likewise the settin of the mechanism is -arranged fen La de nite size of carton with adjustments rovided for different sizes of cartons, alt ough generally the machine is built and set for a definite kind and size of carton to the preference of the users who delegate the machine for packing one kind of product for its full capacity, and any adjustability of the parts may be chiefly re-- garded as means for standardizing the machine manufacture to reduce its cost more than as a factor to the benefit of the user in' converting its capacity to different kinds and sizes of cartons, although it inherently to a degree may have such extended range.

The carton represents a commercial rectangular cardboard box structure, having opposite end closure flaps, and marketed by the. box manufacturer in a flat or knockdown form. These come to the user packed in bundles, uniformly compiled or correspondingly arranged as to their ends and flaps, and ready to be deposited within the magazine of the machine, which is designed to so receive the carton bundles without rearrangement; of advantage to the capacity of the machine and reduction of expense incident to handling. I

The cartonis made from a single blank. of material cut to proper dimension and outline, scored and folded, with its body walls united or joined together.

A stack of cartons compiled and arran ed as'previously set forth are deposited wit in a magazine supported above a table at the receiving end of the machine, said magazine comprising a pair of angle strips 11, which strips are suitably spaced apart to provide rear and side-guide walls for the cartons disposed therebetween, and thus provide a skeleton or open-sided magazine, so that free access can be had to the cartons within the magazine.-

2 indicates a vertical plate forming the forward side wall of the m azine, which is secured to cross-rails 3 of the front jour 'nal bracketA. This wall 2 is. bifurcated or slotted at its lower end and centrally to receive the foot member 5 adjustably se-, cured by set screws 6, respectively engaged through slots in said foot member, and threaded into the cross-rail 3 as a part of the front bearing bracket 4. This foot member is provided with a forwardly projecting toe 7, disposed above the table plane,

plane of the table. The carton, therefore, as a three-point sustension wh ch is of quite an wall 0 advantage to consecutive feeding of the cartons singly. The fiat or collapsed cartons have a tendency to buckle and not he perfectly flat u on a plane surface, and as the ejector b ade bears a auged relation to the thickness of the fol ed or collapsed carton, and considering that if this relation is in any wise disturbed, the ejector will miss advancin the lowermostcarton of the ile, or crowd itagainst the forward f the magazine or. otherwise interfere with a; continuous perfect operation of the machine, this three-point. sustension is seen to be advantageous. The prongs or lugs 8 are slightly recessed from the upper plane of the ejector, providin shoulders adapted to engage the edge 0 the carton dlrectly sustaine or resting upon the teats. The sustension of the rear edge of the carton upon two suitably spaced points insures a full bearing contact of the carton at such points, due to the weight upon the carton, whereby the cooperation of the edge of the carton against t e shoulders of the ejector is obtained, and whereby but a single caron, the lowermost one of the pile, is ejected from the magazine and advanced over the table with each forward or feeding stroke of the-ejector.

The ejector 9 is fixed upon a carriage or slide member 11, gibbed upon the way 12, of the'bracket 13, fixed to and rojecting from the end frame 14. The sli e member or carriage 11 is reciprocated by a lever 15, the lever 15 at one end being pivotally connected to the carriage and its opposite endfixed upon a rock shaft 16 journaled at its ends in a pair of brackets 17, fixed to and projecting from the end frame 14.

The lever 15 intermediate of its length is provided with an ear extension pivotally connecting with a rod 18 extending to the opposite end of the machine and suitably connected with the power means (not shown). The ejector carriage 11 moves at a properly timed interval in forward and retreat strokes, its forward stroke, through its ejector, engagingand advancing the lowermost carton of the pile within the magazine and retreating for a subsequent operation. .The presser-foot 10, centrally supporting the forward end of the carton, and substantially central to the line of travel of the uide foot 10, mounted within ..ward motion of the Presser-foot, which isadjusted from the lower face of the toe, 7, of the foot member 5, to permit the carton to pass between said members, and offer resistance against the free passage of two cartons simultaneouslv. therebv preventing the advance of more than one carton at a 1 time.

The presser-foot 10 is yieldingly urged upward by a spring 21 inserted between the resser-foot and the base of the recess within the table. The presser-foot may be adjusted by the adjusting screw 20, for micrometrically setting the presser foot a determined distance from the uide toe above. The presser-foot will yielf downwardly to a degree sufiicient to permit the lowermost carton to be advanced between the presserfoot and the guide toe and accommodate for any inequalities in the carton due to its folds, without impeding the advance of the carton. The carton is ejected from' the magazine and advanced by the ejector over the table until it engages at its forward end against the depressible stop levers 22- 22 respectively arranged at opposite sides of the table or track 23, and their hook or 1 stop ends project upwardly through notches in the side edges of the track 23, to provide a pair of abutments aginst which the carton is engaged for holding the carton againstadvancingmotion during the next operation. s

Having described the invention, I claim: 1. The combination of a magazine for holding a stack of normally collapsed cartons, an ejector for extracting the end carton of the stack from the magazine providinga base support for the cartons in the a magazine, having a pair of tangs for sustaining the carton at two points along a rear edge of the carton, means for reciproeating said ejector, and yielding means intermediate of said tangs for'sustain'i'ng the carton at a forward edge.

2. The combination of a magazine for holding a stack of normally collapsed cartons, an ejector for extracting the end carton of the stack from the magazine providing a base support for the cartons in the magazine, having means projecting therefrom for sustaining the carton at spaced points along a rear edge of the carton, means for reciprocating said ejector, and yielding means intermediate of said tangs for centrally sustaining the carton at its opposite edge tons, an ejector for'extracting' the end car-.

ton of the stack from the magazine and sustainin at one end the cartons within the magazine, a member for gieldably centrally sustaining the carton in t e magazine at the discharge end of the magazine and with the said magazine providin a discharge throat for a single carton thic ness. a

4. The combination of a magazine for holding a stack of normally collapsed cartons, an ejector at the base of the magazine.

having an end for sustaining the carton within the'magazine while in its retreat position and engaging an edge ofrthe lowermost carton of the stack for extracting the same, said ejector in its operation movingthe magazine to provide an expansible t roat for successively extracting the end cartons:

of the stack.

6. The combination of a magazine forholding a stack of normally collapsed car tons having an open base end ,for successively extracting the end carton of a stack, a

1 yielding means cooperating with the magazine base and providing a throat element movable for expandin and limiting the throat o ening proportionate to a collapsed carton t ickness.

-member for centrally sustainin 7. The combination of a magazine for 40 holding a stack ofnormally collapsed cartons having a throat opening at its base for extracting the end carton vof the stack, a

member providing a yielding throat element movable for expanding the throatopening and centrally sustaining the carton within the magazine and guiding the carton beyond the magazine as a-carton is advanced in extractin 8. T e combination of a magazine for holding a stack of normally collapsed cartons having a throat opening atits base, a carton extractor reciprocatin across the base of said carton for successively extracting' the endmarton' of the stack from the magazine, having means for en aging and sustaining the carton at one e a compressible member for centrally sustaining the carton in the magazine at an edge opposite the extractor and providing a throat element movable for expanding the throat opening when a carton is engaged in the throat. Y

9. The combination of -a magazine for holding a stack of normally collapsed cartons havin a throat opening at its base, an

extractor or extracting the end carton of the stack from the magazine, a compressible one end of the carton in the magazine an providing a throat element movable for ex andin the throat opening and adjustable or limiting the guage of the throat opening proportionate to a collapsed carton thickness.

In witness whereof, I hereunto subscribe my name. v

RUEL AjaoNEs. 

